Allied World War II strategy; Cold War; nationalism, civil war and genocide.
The Army decimates American Indians; Russo-Japanese War; tanks and planes in World War II.
Trains, telegraph and rapid-fire weapons; Crimean War; Civil War; Prussian efficiency unites Germany.
The Seven Years War; American Revolution; French Revolution and Napoleon.
Longbows at the Battle of Crecy, 1346; the fall of Constantinople; the fall of the Aztec empire.
Mounted cavalries; Attila the Hun; Genghis Khan; samurai warriors.
The Roman and Chinese empires build cultures on violence and leave legacies of organization.
Greek phalanx warfare; Philip of Macedon; Alexander the Great.